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J. H. STEVENS. WAX POT POR SEWINGMAGEINBS.

No. 420,120. 2, Patented Jen. 28, 1890.

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`UNITED STATES PATENT OEETCE.

JOHN n. STEVENS, oE LYNN, MASSACHUSETTS, ASSTGNOR To LARKIN L.

DAviS, TRUSTEE, oE SAME PLAGE.

WAX-POT FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 420,120, dated January 28, 1890.

Application filed June 30, 1888. Serial No. 278,663. (Model.)

To all whom it may concern,.-

Be it known that I, JoHN H. STEVENS, of Lynn, county of Essex, and Commonwealth of Massachusetts, have invented certain Improvements in Thread-Taxing Mechanism for Sewing-Machines, of which the following, taken in connection with the accompanying drawings, is a specification.

This invention rela-tes to mechanism used in connection with the McKay sewing-machine and other sewing-machines for the purpose of waxing thread used in Said machines, and the nature thereof is fully described, and then specically claimed hereinafter.

Referring to the drawings, Figure l is a plan view of the mechanism embodying this invention. Fig. 2 is a transverse vertical section on line 2 2 of Fig. l. Fig. 3 is a longitudinal vertical Section on line 3 3 of Fig. l.

The ball of thread is contained in the chamber A, from which the thread a is carried upward through a suitable opening in the cover of the chamber and downward through a similar opening in the cover of the wax-pot B, as shown in Fig. l. It then passes to the bottom of the wax-chamber E, (see Fig. 3,)

' where it is retained bya wire-tension e. Said Wire has its bottom ends curved to form suitable eyes, through which the thread is made to pass, as represented in said Fig. 3. The thread is retained by said wire at the bottom of the wax-chamber, and is thereby made to dipv under the wax as it comes from theholding-chamber. After passing under the wax the thread goes upward through an opening H2, formed in the cover, and forward to the machine sewing mechanism. The cover has a casing Il', which is located about the opening. In passing through the opening H2 the surplus wax is removed from the thread by means of a stripper 4 4, Said stripper comprises a metallic block 4, made to fit loosely in the casing H and over the opening through the cover of the glue-chamber, and a stripper-bar 4, which is pivoted at its rear end within an opening in the removable block 4, so as to permit a swinging movement upward. At the forward end of the stripperblock 4 is a small opening H, through which the thread passes. Said opening is made sufiiciently small so that the thread in passing upward through the same will bear against the sides thereof and against the stripper-barv ward, the end of the stripper-bar thereby causing and maintaining a yielding pressure and consequent tension upon the thread.

vIt will be understood that the size of the thread-passage is increased by lifting and decreased by depressing the end of the stripper-bar. The stripper-bar is provided with a screw 6, the bottom end of which bears upon a cross-bar 7 of the block 4f, and by turning this screw in an obvious manner the depressionof the stripper-bar may be regulated, so as to adjust the thread-opening H to any desired sized thread.

I have described the opening H as leading out of the hole occupied by stripper-bar 4, and such a construction tends to retain the form of the thread-that is, its roundness;

but I am aware that the thread could be taken directly through the opening provided for the strippenbar, provided the end of the stripper-bar were lifted sufficiently to allow an opening therefor.

I have described this my invention as a device for treating thread with wax. In such case the wax is reduced to a liquid form and is put into the waX-chamber, as represented in Fig. 2. To the end that it may be filtered before reaching the thread, I provide an inf ner chamber within a removable tray 10, into which the wax is originally placed, and through the sides of which it filters into the chamber occupied by the thread in its passage under the wire e. The tray l0 may be composed of iine-wire netting or tin with suitable perforations; In the -cover of the wax-4 It Will be understood that the aboVe-de- I 2. In combinationwith'a covered Wax-pot,

scribed mechanism may be used with other an exit-opening in the top thereof, a easing material besides Wax. H', surrounding said opening, a block 4, sup- I claim and desire to secure by Letters Patported by said casing, having a notched edge, I5 v 5 enta stripper-bar pivoted to the block, and an l. In combination, a covered wax-pot, an opening 9 in the lower part of the blook 4, exit-opening for the thread, a Casing H', surleading to the interior of the pot, as described.

rounding said opening, the block 4f,remov JOHN H. STEVENS.

ably secured to the casing, and a stripper-bar `Witnesses: 1o ,pivoted to said block, substantially as de- M. O. SOUTH,

scribed. C. B. TUTTLE. 

